Which of the following statements about the basic functions of money is TRUE（）

A. When money is defined as a medium of exchange, it means that money enables value to be stored and transported.

B. Money’s value is directly related to the level of prices.

C. Money’s function as a unit of account allows individuals to account for debts.

左锁骨上淋巴结转移性腺癌的原发灶最可能是()

A．乳腺

B．甲状腺

C．腮腺

D．胰腺

E．胃